This fitting type of gutter union incorporates a fixing bracket, eliminating the requirement for the union to be supported with fascia brackets within 150mm.andnbsp;Slide each gutter into the union and ensure there is only a small gap (max 2mm) between each. Once the gutter is in place the locking tabs are bent down into place using the small key provided. This compression of the gutter onto the rubber seal creates a watertight joint.We recommend the use of silicon spray on all rubber seals to improve adhesion and long-term seal performance.Please note: on arrival, the fixing bracket is not attached to the union.